Antiship torpedo defense system
USH1231H · kind H · statutory invention registration
Assignee
Inventor
Key dates
| Filing date | — |
| Grant date | Sep 7, 1993 |
| Priority date | — |
| Expiry date | — |
Classification
- Technology area (CPC —)General
Abstract
The detection and localization of an antiship torpedo is accomplished by ustic and optical means. A ship's sonar determines the approximate location of the incoming torpedo and a laser scans this location with energy in the blue-green spectrum. Surface reflections are gated out of a linear detector array and reflected portions of the scanning beam which penetrate the water's surface are divided among the elements of the linear detector array into field of view element signals. These field of view element signals are subsequently compared in time and amplitude to determined disparities between them which point to the torpedo's position, depth and bearing. Optionally, spectral and polarizing filters are provided to enhance the signal to noise ratios and to facilitate signal processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.